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A substitution based on a matrix vector product
I choose at random an invertible square matrix A of size 128 in GF(2). I want to use this matrix as a substitution box. Is this a non linear transformation ?
I've seen that substitution boxes are ...
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1answer
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What happen if a asymmetric crypto-system deals with only one key
Assume there is a crypto algorithm that deals with matrices to encrypt and decrypt. Regardless of the specification of such algorithm, what if the algorithm assumes that two parties can securely agree ...
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Matrix Multiplication of Bits
How to multiply the matrix of bits
example I have two 4x4 matrices of bits
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